UPDATE: The Sacramento Valley felt its first triple-digit temperatures of 2015 Monday, with a high of 105 degrees in Sacramento Monday afternoon. High pressure over Northern California and a lack of Delta Breeze kept it hot. Cooling off Tuesday.

Workers laboring outdoors are taking precautions because of the heat.
Farm workers, road crews, and other people who work outside are at particular risk this week because of the extreme heat in much of California.